Larry Page, chief executive of Google parent company Alphabet, was also invited but has not confirmed his attendance, a committee spokesperson confirmed to TechCrunch.

Sen. Richard Burr (R-NC) said in a release that the social media giants will be asked about their responses to foreign influence operations on their platforms in an open hearing on September 5.

It will be the second time the Senate Intelligence Committee, which oversees the government’s intelligence and surveillance efforts, will have called the companies to testify. But it will be the first time that senior leadership will attend — though, Facebook chief executive Mark Zuckerberg did attend a House Energy and Commerce Committee hearing in April.

It comes in the wake of Twitter and Facebook recently announcing the suspension of accounts from their platforms that they believe to be linked to Iranian and Russian political meddling. Social media companies have been increasingly under the spotlight in the past years following Russian efforts to influence the 2016 presidential election with disinformation.

A Twitter spokesperson said the company didn’t yet have details to share on the committee’s prospective questions. TechCrunch also reached out to Google and Facebook for comment and will update when we hear back.